31231422132543 has 24 divisors (see below), whose sum is σ = 45856736097120. Its totient is φ = 20477325274560.

The previous prime is 31231422132539. The next prime is 31231422132569. The reversal of 31231422132543 is 34523122413213.

31231422132543 is a `hidden beast` number, since 3 + 1 + 23 + 1 + 42 + 21 + 32 + 543 = 666.

It is not a de Polignac number, because 31231422132543 - 2² = 31231422132539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31231422132498 and 31231422132507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231422132503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1720078 + ... + 8088356.

It is an arithmetic number, because the mean of its divisors is an integer number (1910697337380).

Almost surely, 2^{31231422132543} is an apocalyptic number.

31231422132543 is a deficient number, since it is larger than the sum of its proper divisors (14625313964577).

31231422132543 is a wasteful number, since it uses less digits than its factorization.

31231422132543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377279 (or 6377276 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 31231422132543 its reverse (34523122413213), we get a palindrome (65754544545756).

The spelling of 31231422132543 in words is "thirty-one trillion, two hundred thirty-one billion, four hundred twenty-two million, one hundred thirty-two thousand, five hundred forty-three".